package com.changgou.goods.dao;

import com.changgou.goods.pojo.Brand;
import feign.Param;
import org.apache.ibatis.annotations.Select;
import tk.mybatis.mapper.common.Mapper;

import java.util.List;
import java.util.Map;

public interface BrandMapper extends Mapper<Brand> {
    /**
     * 根据商品分类名称查询品牌列表
     * @param categoryName
     * @return
     */
    @Select("SELECT b.name,b.id from tb_brand b INNER JOIN tb_category_brand cb on b.id = cb.brand_id\n" +
            "INNER JOIN tb_category c ON c.id = cb.category_id WHERE c.name = '手机'")
    public List<Map> findListByCategoryName(@Param("name")String categoryName);

}
